Handportable AntennasHX 2/...-GP 300

Helical Antenna for Portable Equipment in the 2 m Band

Description

  • Flexible, conical steel helix moulded in flexible thermoplastic rubber.
  • Reduced-size ¼ λ helical antenna whip.
  • Optimum performance compared to physical dimensions.
  • Delivered factory tuned and tested to ensure minimum VSWR.
  • Especially designed for Motorola GP 300, GP 344, GP 360 and
    GP 388 (150 MHz band) etc.

Specifications

Electrical
Model HX 2/...-GP 300
Frequency 2 m band covered by three models
Antenna Type Shortened ¼ λ helical antenna
Max. Input Power 50 W
Polarisation Vertical
Impedance 50 Ω
Gain Approx. -3 dB (compared to a ¼ λ portable antenna)
VSWR < 1.5:1 when mounted directly on portable equipment
Bandwidth ≥ 16 MHz @ VSWR ≤ 3.0:1
Mechanical
Connection(s) 1/4"-32 UNEF
Materials Steel helix moulded in flexible thermoplastic rubber
Weather- and shockproof plastics
Cu-nite brass
Colour Black
Height Approx. 150 mm / 5.91 in.
Weight Approx. 0.03 kg / 0.07 lb.

Diagram and Mounting

TYPICAL SWR CURVES

Ordering Designations

Model Product No. Frequency
HX 2/l-GP 300 140000136 144 - 160 MHz
HX 2/m-GP 300 140000128 152 - 168 MHz
HX 2/h-GP 300 140000127 160 - 175 MHz

Typical VSWR curve

HX 2!… GP 300 VSWR